DE3401213A1 - SPRING HINGE FOR EYEWEAR - Google Patents

Description

Description:

The invention relates to a spring hinge for glasses consisting of a bracket part with a holder for a slider part with a bracket hinge, which holder keeps the slide part extendable against spring action, the bracket hinge with the middle part hinge cooperates.

According to DE-OS 32 13 174 such spring hinges are known, in which the hinge eyes from the middle part hinge for locking the temple end to achieve a snap effect when transitioning to the rest or open position are formed like a cam. There are also other versions of leather hinges with a snap effect at the transition from resting to Open position and vice versa known. In all of these designs, sliding friction occurs between Spring action on metal parts sliding one on top of the other, which leads to material abrasion and the snap effect disturbs.

Furthermore, the use of balls for the snap lock in the rest and open position is also connected known with cams and notches. However, due to the point contact, this brings a high spec. Pressure and with it Infeed tracks with them, which hinder the snap effect and only close through the use of special steel parts fix are.

It is now the object of the invention to achieve a light and permanent snap effect between the rest position and the open position with spring hinges that can be pushed over in the open position. 5

The spring hinge according to the invention is characterized for this according to the preamble of claim 1 by the interposition of one on the cam flanks rolling roller body, which in the slide receiving end is stored. In this case, the roller body is preferably mounted in the slide receiving end by means of a roller carrier, which holds the roller axis with jaws encompassing both sides, the Roller carrier can also serve as a spring stop for the extendable slide part.

As a result, on the one hand, the parts moving towards one another under the action of a spring cause a rolling Achieved friction with line contact, which ensures easy snapping and avoids material changes and thus the service life increased and on the other hand through the use of the roller carrier as a spring stop for the retractable slide part facilitates assembly.

Further details of the spring hinge according to the invention emerge from the illustrated in the drawing. th preferred embodiments with the following Description, namely show:

Figure 1 is the perspective overall view

such a spring hinge,

Figure 2 to 5 the perspective view of individual parts for this,

Figure 6 and 7 two sectional views of this

Spring hinge in different functional positions and 10

Figure 8 shows the sectional view of a

further embodiment.

As can be seen from the drawing, there is a spring hinge from the bracket part 1 with receptacle 2 for the here U-shaped slide tongue 3 with spring 4, wherein the slide tongue 3 run out into the hinge eyes 5 of the bracket hinge, which with the hinge eye 6 of the middle part hinge 7 interact by means of a hinge screw 8 as an articulated connection. Here it is Middle part hinge eye 6 at 9 cam-like for snapping over the temple end from rest in Open position formed. Here, the interposition of a roller body 10 is provided, which is mounted in a roller carrier 11 in the slide receptacle 2 and for rolling on the cam flanks and thus ensures that it snaps over easily. Of the

In this case, the roller carrier 11 engages around the roller body 10 on both sides with jaws 12 and supports with these (12) the roller axle 13, which here is designed as a plug-in axle.
5

As can also be seen from the drawing, the roller carrier 11 also serves as a stop for the Spring 4, which is used to push over the temple in Connection with the extendable slide tongue 3 is provided. For this purpose, the extendable, U-shaped grips around Slide tongue 3 with inserted spring 4 with its ends ending in the hinge eyes 5 the roller carrier 11 on both sides. The roller carrier 11 is fixed on the bottom of the receptacle 2, which is what the execution according to FIG. 8 by means of square nozzles 14 attached to the bottom with locking in a round bottom recess 15 takes place in the slide mount 2 at spring system 4. After this is also in the roller carrier 11 at second embodiment, the end piston 16 of a spring guide pin 17 on the spring side by means of a tongue and groove connection 18 lockable, which makes assembly easy.

The roller body 10 is preferably mounted via a roller axle 13, the radius of the roller body is many times larger than the axis radius to ensure easy and safe unwinding.

Claims (6)

PATENTANWALTS, .- ";" "., * I DR. RUDOLF BAUER · DIPL.-ING. HELMUT HUBBUCH DIPL.-PHYS. ULRICH TWELMEIER WESTLICHE J9 - 31 (AM LEOPOl.OMAT?) D-7530 PFORZHEIM (West-Germany ) W (0 72 3Ί 10 22β0 <70 TELEOBAMME PATMARK 13.01.1984 II / Be Fa. OBE-Werk Ohnmacht & Baumgärtner GmbH & Co. KG, 7536 Ispringen "Spring hinge for glasses" Patent claims: 1. Spring hinge for glasses consisting of one Bracket part with holder for a slider part with bracket hinge, which holder the slider part Holds extendable against spring action, the bracket hinge cooperating with the central part hinge and the hinge eye from the middle part hinge for locking the temple end to achieve a snap effect when transitioning to rest or Open position is designed like a cam, characterized by the interposition of a rolling on the cam flanks Roller body, which is mounted in the slide receiving end. 2. Spring hinge according to claim 1, characterized in that that the storage of the roll body in the slide receiving end by means of a roller carrier takes place, which holds the roller axis with jaws encompassing both sides. 3. Spring hinge according to claim 2, characterized characterized in that the roller carrier also acts as a spring stop for the extendable Slider part is used. 4. Spring hinge according to one of claims 1 to 3, characterized in that the extendable slide part is a U-shaped slide tongue with inserted spring the roller body (roller carrier) in the slide mount with its in the hinge eyes encompassing expiring ends on both sides. 5. Spring hinge according to one of claims 2 to 4, characterized in that the roller carrier can be locked by means of a connecting piece in a floor recess in the slide mount with spring contact is. 6. Spring hinge according to claim 5, characterized ζ e i c h η e t that the end piston of a spring guide pin in the roller carrier on the spring side can be locked by means of tongue and groove connection.